CN115145219B - Cloud intelligent water quality monitoring system - Google Patents
Cloud intelligent water quality monitoring system Download PDFInfo
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- G05B19/00—Programme-control systems
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- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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Abstract
The application relates to a cloud intelligent water quality monitoring system. This application high in clouds intelligent water quality monitoring system include: the device comprises a programmable controller, a detection input module, a liquid level input module, an output control module, a cloud communication module and a man-machine interaction module; the detection input module transmits the detected analog signal to the programmable controller in a digital signal mode after analog-to-digital conversion; the liquid level input module transmits the analog signal of the monitored liquid level to the programmable controller in a digital liquid level value mode; the programmable controller sends a control signal to the output control module to control the on and off of the drug injection action; the programmable controller performs standardization processing on the digital signals, compares the standardized detection signals with a set range, and sends out comparison results respectively. The application cloud intelligent water quality monitoring system has the advantages of being easy to adapt and improving universality.
Description
Technical Field
The application relates to the field of water treatment, in particular to a cloud intelligent water quality monitoring system.
Background
In water treatment and water quality monitoring, dosing is a necessary link. In the prior art, the dosing device is complete equipment with the functions of dosing, stirring, liquid conveying and automatic control and integration, is widely applied to raw water, boiler water supply of a power plant and ground surface gathering and dewatering treatment systems of an oil field, and is also widely applied to various dosing systems and wastewater treatment systems of petrochemical industry. Such as coagulant, acid-base solution, phosphate, ammonia liquor, lime water, oxidant, reducer, water quality stabilizer (corrosion inhibitor), scale inhibitor, liquid pesticide, etc.
When adding medicine, firstly detecting water quality condition, then making analysis and judgement, using operation and control of automatic controller, making medicine-adding device according to the required medicine concentration, making preparation in stirring box, uniformly stirring them, then adding them into solution box, using metering pump (medicine-adding pump) and conveying the prepared solution into the medicine-adding point or appointed system. And finally, conveying the prepared liquid medicine into an upper water pipe or a water return pipe.
In the whole water treatment, water quality monitoring, control, automatic dosing and negative feedback control are performed, and in the whole process, the adaptation problem exists due to the fact that the water quality monitoring, the control and the automatic dosing belong to different suppliers and different manufacturers, and an adaptation conversion process is performed. For example, the PLC using siemens is controlled, and the communication protocol and standard of siemens need to be adopted to perform the adaptation.
In the times of the Internet and the Internet of things, the intercommunication of data and the smooth adaptation of multiple products are very important, and especially when the adaptation of different products is carried out, how to quickly interconnect and interwork becomes the key of the adaptation and the use. In the prior art, due to the fact that the adaption is not smooth, when different products in the Internet of things are matched, certain difficulty exists, development is needed, the whole matching becomes difficult, the development of the Internet of things, and particularly the development of the Internet of things in the subdivision field of water quality detection and monitoring is hindered. In a word, the water quality monitoring in the prior art cannot achieve good interconnection and intercommunication, so that the existing water quality monitoring cannot achieve good interaction and matching use, the whole system is not mature enough, and even cloud interconnection and intercommunication cannot be achieved.
Disclosure of Invention
Based on this, the aim at of this application provides high in the clouds intelligent water quality monitoring system, and it has convenient realization water treatment's self-adaptation to throw and add to make high in the clouds interconnection and intercommunication more easy advantage that realizes.
In one aspect of the application, a cloud intelligent water quality monitoring system is provided, which comprises a programmable controller, a detection input module, a liquid level input module, an output control module, a cloud communication module and a man-machine interaction module;
the detection input module transmits the detected analog signal to the programmable controller in an analog-to-digital conversion mode through the digital sensor input module, and then transmits the analog signal to the programmable controller in a digital signal mode; the liquid level input module carries out analog-to-digital conversion on the analog signal of the monitored liquid level through the digital sensor input module and then transmits the analog signal to the programmable controller in a digital liquid level value mode;
the programmable controller sends a control signal to the output control module to control the on and off of the drug injection action;
the programmable controller is electrically connected with the cloud communication module through an RS485 communication interface;
the programmable controller is electrically connected with the man-machine interaction module through another RS485 communication interface;
the cloud communication module comprises a cloud communication processor, a four-bit dial switch and a wireless communication module; the cloud communication processor is respectively and electrically connected with the four-bit dial switch and the wireless communication module, and controls the four-bit dial switch to switch the wireless communication mode; the cloud communication processor is electrically connected with the programmable controller through an RS485 communication interface;
the man-machine interaction module comprises an interaction processor, a memory temporary storage, a touch screen and a display screen, wherein the memory temporary storage is electrically connected with the interaction processor, the touch screen is electrically connected with the interaction processor through a resistance type interface, and the display screen is electrically connected with the interaction processor through a liquid crystal screen interface; the interaction processor is electrically connected with the programmable controller through an RS485 communication interface; the touch screen is stacked on the display screen;
the programmable controller performs standardization processing on the digital signals transmitted by the digital sensor input module to obtain standardized detection signals, compares the standardized detection signals with a set range, and sends comparison results to the cloud communication processor and the interaction processor respectively.
According to the cloud intelligent water quality monitoring system, standardized processing is carried out on data of the nonstandard sensor, and the standardized data are compared with the set value to judge whether the standardized data accord with the standard or not, so that corresponding operation or shutdown of the liquid injection pump is controlled, and finally automatic intelligent control of water quality is realized. In addition, the intelligent interaction and interconnection effect is realized, the smoothness of human-computer interaction is realized through the human-computer interaction module, the setting of parameters and numerical ranges is further conveniently realized, the convenience is improved, and humanization is satisfied; through the cloud communication module, the convenience of remotely acquiring information of a user is easily realized, the user can remotely acquire the water quality condition of the scene at the mobile terminal, and the method is real-time and convenient, so that the easy realization of interconnection and intercommunication is further improved. The method and the device solve the problem of the adaptation of nonstandard products, and greatly simplify the adaptation process; then, the convenient problem of interconnection and intercommunication of water quality monitoring is also overcome, so that the water quality monitoring is real-time and convenient, and a user can finish water quality management at the mobile terminal; finally, the problem of difficulty in man-machine interaction is solved, so that man-machine interaction of on-site water quality monitoring and management is easy.
Further, the performing normalization processing on the digitized signal to obtain a normalized detection signal includes:
establishing a rectangular coordinate system by taking an input value as an abscissa and a standard value as an ordinate;
obtaining starting point coordinates according to the starting point input value and the starting value of the standard value in the setting process; obtaining an end point coordinate according to the end point input value and the end value of the standard value in the setting process;
connecting the starting point coordinate and the end point coordinate on the same straight line to obtain standardized oblique lines;
and (3) corresponding the value of the obtained digital signal to the abscissa and finding the ordinate value of the corresponding standardized oblique line, thereby obtaining the numerical value of the standardized detection signal.
Further, the comparing the normalized detection signal with the set range includes:
setting a detection range of each detected signal, comparing the value of the standardized detection signal with the end value of the set detection range if the initial value of the detection range of the detected signal is 0, and outputting if the value of the standardized detection signal is smaller than the end value; if the value of the standardized detection signal is larger than the end point value, the output is higher;
if the initial value of the detection range of the detected signal is larger than 0, comparing the value of the standardized detection signal with the set initial value of the detection range, and if the comparison result is that the value of the standardized detection signal is smaller than the initial value, outputting the standardized detection signal to be lower; if the comparison result is that the value of the standardized detection signal is larger than the initial value, comparing the value of the standardized detection signal with the set end value of the detection range;
if the comparison result is that the value of the standardized detection signal is smaller than the end point value, outputting the standardized detection signal to be qualified; if the comparison result is that the value of the standardized detection signal is larger than the end point value, the output is higher.
Further, after the comparison results are sent to the cloud communication processor and the interaction processor respectively, the method further comprises:
establishing an association relation between a detection input module and the output control module;
the programmable controller sends out corresponding control signals to the corresponding liquid injection pump so as to control the starting or closing of the corresponding liquid injection pump.
Further, the sending the comparison result to the cloud communication processor and the interaction processor respectively includes: if the comparison result is qualified, the obtained numerical value of the standardized detection signal is sent to an interaction processor, and the numerical value is displayed on a corresponding module of the display screen after being processed by the interaction processor; meanwhile, sending the qualified word to a cloud communication processor so as to display the qualified word at a user terminal;
if the comparison result is higher or lower, the obtained numerical value of the standardized detection signal is sent to the interaction processor, the numerical value is displayed on the display screen in a mode that the dial pointer points to the corresponding scale, and the higher or lower numerical value is displayed on the display screen; and sends the "high" or "low" to the cloud communication processor.
Further, the detection input module comprises a residual chlorine sensor, a pH sensor, a turbidity sensor, a dissolved oxygen sensor, a constant pressure Yu Yang sensor and an ammonia nitrogen sensor;
the liquid level input module comprises an acid liquid level meter, an alkali liquid level meter, a chlorine liquid level meter and a precipitant level meter;
the output control module comprises Y0 optical coupling isolation output, Y1 optical coupling isolation output, Y2 optical coupling isolation output and Y3 optical coupling isolation output;
the Y1 optical coupling isolation output is electrically connected with the acid liquor metering pump, the Y2 optical coupling isolation output is electrically connected with the alkali liquor metering pump, the Y0 optical coupling isolation output is electrically connected with the chlorine liquor metering pump, and the Y3 optical coupling isolation output is electrically connected with the precipitant metering pump;
the establishment of the association relation between the detection input module and the output control module comprises the establishment of the association relation between the residual chlorine sensor and Y0 optical coupling isolation output, the establishment of the association relation between the pH sensor and Y1 optical coupling isolation output and Y2 optical coupling isolation output, the establishment of the association relation between the turbidity sensor and Y3 optical coupling isolation output, and the establishment of the association relation between the dissolved oxygen sensor, the constant pressure Yu Yang sensor, the ammonia nitrogen sensor and the oxygenation pump.
Further, the programmable controller sends out a corresponding control signal to a corresponding infusion pump, including:
analog signals detected by the residual chlorine sensor are subjected to analog-to-digital conversion, digital signals after the analog-to-digital conversion are subjected to standardization processing to obtain residual chlorine measured values, and the residual chlorine measured values are compared with residual chlorine set values; if the comparison result is qualified, the programmable controller sends a control signal to the Y0 optical coupling isolation output so as to control the chlorine liquid metering pump to be in a stop state; if the comparison result is lower, controlling the chlorine liquid metering pump to be started and in an operating state;
analog signals detected by the pH sensor are subjected to analog-to-digital conversion, digital signals after the analog-to-digital conversion are subjected to standardization treatment to obtain a pH value, and the pH value is compared with a pH set value; if the comparison result is qualified, the programmable controller sends a control signal to the Y1 optical coupling isolation output and the Y2 optical coupling isolation output so as to control the acid liquor metering pump and the alkali liquor metering pump to be in a stop state respectively; if the comparison result is higher, controlling the acid liquor metering pump to start and keep running until the detection result of the pH value is qualified; if the comparison result is lower, controlling the alkali liquor metering pump to start and keep running until the detection result of the pH value is qualified;
analog-to-digital conversion is carried out on the analog signal detected by the turbidity sensor, the digital signal after the analog-to-digital conversion is subjected to standardization treatment to obtain a turbidity value, the turbidity value is compared with a turbidity set value, and if the comparison result is qualified, the programmable controller sends a control signal to Y3 optical coupling isolation output so as to control the precipitant metering pump to be in a stop state; if the comparison result is higher, controlling the precipitant metering pump to start and keep running until the turbidity detection result is qualified.
Further, the intelligent liquid level detection device further comprises a power supply circuit which is electrically connected with the programmable controller, the detection input module, the liquid level input module, the output control module, the cloud communication module and the man-machine interaction module respectively.
Further, the wireless communication module comprises a GPRS communication module, a TCP communication module and a WIFI communication module;
the four-bit dial switch is respectively and electrically connected with the GPRS communication module, the TCP communication module and the WIFI communication module so as to switch and select the communication mode.
Further, the programmable controller is provided with a MODBUS communication interface, and the man-machine interaction communication module is provided with a download program USB interface.
For a better understanding and implementation, the present application is described in detail below with reference to the drawings.
Drawings
FIG. 1 is a block diagram of an exemplary cloud intelligent water quality monitoring system of the present application;
FIG. 2 is a block diagram illustrating an exemplary programmable controller and related input/output module connection relationship according to the present application;
FIG. 3 is a block diagram illustrating an exemplary human-machine interaction module of the present application;
fig. 4 is a block diagram of an exemplary cloud communication module of the present application;
fig. 5 is a schematic diagram of a display result of an exemplary display screen of the present application;
FIG. 6 is a control flow diagram of an exemplary cloud intelligent water quality monitoring system of the present application;
FIG. 7 is a further control flow diagram of an exemplary cloud intelligent water quality monitoring system of the present application;
fig. 8 is a schematic diagram of an exemplary rectangular coordinate system of the present application.
Detailed Description
In the description of the present application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
Referring to fig. 1-8, an exemplary cloud intelligent water quality monitoring system of the present application includes a programmable controller, a detection input module, a liquid level input module, an output control module, a cloud communication module, and a man-machine interaction module;
the detection input module transmits the detected analog signal to the programmable controller in an analog-to-digital conversion mode through the digital sensor input module, and then transmits the analog signal to the programmable controller in a digital signal mode; the liquid level input module carries out analog-to-digital conversion on the analog signal of the monitored liquid level through the digital sensor input module and then transmits the analog signal to the programmable controller in a digital liquid level value mode;
the programmable controller sends a control signal to the output control module to control the on and off of the drug injection action;
the programmable controller is electrically connected with the cloud communication module through an RS485 communication interface;
the programmable controller is electrically connected with the man-machine interaction module through another RS485 communication interface;
the cloud communication module comprises a cloud communication processor, a four-bit dial switch and a wireless communication module; the cloud communication processor is respectively and electrically connected with the four-bit dial switch and the wireless communication module, and controls the four-bit dial switch to switch the wireless communication mode; the cloud communication processor is electrically connected with the programmable controller through an RS485 communication interface;
the man-machine interaction module comprises an interaction processor, a memory temporary storage, a touch screen and a display screen, wherein the memory temporary storage is electrically connected with the interaction processor, the touch screen is electrically connected with the interaction processor through a resistance type interface, and the display screen is electrically connected with the interaction processor through a liquid crystal screen interface; the interaction processor is electrically connected with the programmable controller through an RS485 communication interface; the touch screen is stacked on the display screen.
S10, the programmable controller performs standardization processing on the digital signals transmitted by the digital sensor input module to obtain standardized detection signals;
in some preferred embodiments, the performing normalization processing of the digitized signal to obtain a normalized detection signal includes:
s11, establishing a rectangular coordinate system by taking an input value as an abscissa and a standard value as an ordinate;
s12, obtaining starting point coordinates according to a starting point input value and a starting value of a standard value in setting; obtaining an end point coordinate according to the end point input value and the end value of the standard value in the setting process;
s13, connecting the starting point coordinate and the end point coordinate on the same straight line to obtain standardized oblique lines;
s14, the value of the acquired digital signal is correspondingly on the abscissa, and the ordinate value of the corresponding standardized oblique line is found, so that the numerical value of the standardized detection signal is obtained.
S20, comparing the standardized detection signal with a set range;
in some preferred embodiments, the comparing the normalized detection signal to the set range includes:
s21, setting a detection range of each detected signal, comparing the value of the standardized detection signal with the end value of the set detection range if the initial value of the detection range of the detected signal is 0, and outputting if the value of the standardized detection signal is smaller than the end value; if the value of the standardized detection signal is larger than the end point value, the output is higher;
s22, if the initial value of the detection range of the detected signal is larger than 0, comparing the value of the standardized detection signal with the set initial value of the detection range, and if the comparison result is that the value of the standardized detection signal is smaller than the initial value, outputting the standardized detection signal to be lower; if the comparison result is that the value of the standardized detection signal is larger than the initial value, comparing the value of the standardized detection signal with the set end value of the detection range;
s23, if the comparison result is that the value of the standardized detection signal is smaller than the end point value, outputting the standardized detection signal to be qualified; if the comparison result is that the value of the standardized detection signal is larger than the end point value, the output is higher.
And S30, respectively sending the comparison result to the cloud communication processor and the interaction processor.
In some preferred embodiments, the sending the comparison result to the cloud communication processor and the interaction processor respectively includes: if the comparison result is qualified, the obtained numerical value of the standardized detection signal is sent to an interaction processor, and the numerical value is displayed on a corresponding module of the display screen after being processed by the interaction processor; meanwhile, sending the qualified word to a cloud communication processor so as to display the qualified word at a user terminal;
if the comparison result is higher or lower, the obtained numerical value of the standardized detection signal is sent to the interaction processor, the numerical value is displayed on the display screen in a mode that the dial pointer points to the corresponding scale, and the higher or lower numerical value is displayed on the display screen; and sends the "high" or "low" to the cloud communication processor.
In some preferred embodiments, after the comparison results are sent to the cloud communication processor and the interaction processor respectively, the method further includes:
s40, establishing an association relation between the detection input module and the output control module;
in some preferred embodiments, the establishing an association between the detection input module and the output control module includes establishing an association between the residual chlorine sensor and the Y0 optical coupling isolation output, respectively establishing an association between the pH sensor and the Y1 optical coupling isolation output and the Y2 optical coupling isolation output, respectively establishing an association between the turbidity sensor and the Y3 optical coupling isolation output, respectively establishing an association between the dissolved oxygen sensor, the constant pressure Yu Yang sensor, and the ammonia nitrogen sensor and the oxygenation pump.
And S50, the programmable controller sends out a corresponding control signal to the corresponding liquid injection pump so as to control the starting or closing of the corresponding liquid injection pump.
In some preferred embodiments, the programmable controller sends corresponding control signals to corresponding infusion pumps, including:
analog signals detected by the residual chlorine sensor are subjected to analog-to-digital conversion, digital signals after the analog-to-digital conversion are subjected to standardization processing to obtain residual chlorine measured values, and the residual chlorine measured values are compared with residual chlorine set values; if the comparison result is qualified, the programmable controller sends a control signal to the Y0 optical coupling isolation output so as to control the chlorine liquid metering pump to be in a stop state; if the comparison result is lower, controlling the chlorine liquid metering pump to be started and in an operating state;
analog signals detected by the pH sensor are subjected to analog-to-digital conversion, digital signals after the analog-to-digital conversion are subjected to standardization treatment to obtain a pH value, and the pH value is compared with a pH set value; if the comparison result is qualified, the programmable controller sends a control signal to the Y1 optical coupling isolation output and the Y2 optical coupling isolation output so as to control the acid liquor metering pump and the alkali liquor metering pump to be in a stop state respectively; if the comparison result is higher, controlling the acid liquor metering pump to start and keep running until the detection result of the pH value is qualified; if the comparison result is lower, controlling the alkali liquor metering pump to start and keep running until the detection result of the pH value is qualified;
analog-to-digital conversion is carried out on the analog signal detected by the turbidity sensor, the digital signal after the analog-to-digital conversion is subjected to standardization treatment to obtain a turbidity value, the turbidity value is compared with a turbidity set value, and if the comparison result is qualified, the programmable controller sends a control signal to Y3 optical coupling isolation output so as to control the precipitant metering pump to be in a stop state; if the comparison result is higher, controlling the precipitant metering pump to start and keep running until the turbidity detection result is qualified.
In some preferred embodiments, the residual chlorine is detected in a range of 0.2 to 1.0ppm, the pH is detected in a range of 6.9 to 7.9, the dissolved oxygen is detected in a range of 650 to 750ppm, and the turbidity is detected in a range of 0.01 to 10NTU.
In some preferred embodiments, the detection input module comprises a residual chlorine sensor, a pH sensor, a turbidity sensor, a dissolved oxygen sensor, a constant pressure Yu Yang sensor, an ammonia nitrogen sensor;
the liquid level input module comprises an acid liquid level meter, an alkali liquid level meter, a chlorine liquid level meter and a precipitant level meter;
the output control module comprises Y0 optical coupling isolation output, Y1 optical coupling isolation output, Y2 optical coupling isolation output and Y3 optical coupling isolation output;
the Y1 optical coupling isolation output is electrically connected with the acid liquor metering pump, the Y2 optical coupling isolation output is electrically connected with the alkali liquor metering pump, the Y0 optical coupling isolation output is electrically connected with the chlorine liquor metering pump, and the Y3 optical coupling isolation output is electrically connected with the precipitant metering pump.
In some preferred embodiments, the system further comprises a power circuit electrically connected with the programmable controller, the detection input module, the liquid level input module, the output control module, the cloud communication module and the man-machine interaction module respectively.
In some preferred embodiments, the wireless communication module comprises a GPRS communication module, a TCP communication module, a WIFI communication module;
the four-bit dial switch is respectively and electrically connected with the GPRS communication module, the TCP communication module and the WIFI communication module so as to switch and select the communication mode.
In some preferred embodiments, the programmable controller is provided with a MODBUS communication interface, and the man-machine interaction communication module is provided with a download program USB interface.
The monitoring flow of the residual chlorine value is used for illustration, so as to illustrate the working principle of the cloud intelligent water quality monitoring system.
Analog signals obtained by the residual chlorine sensor are transmitted in a digital signal mode after analog-digital conversion, and standardized processing of the signals is carried out in a programmable controller. As shown in FIG. 8, the output signal of the standard probe is 4-20mv, while the output signal of the sensor is 2-30mv. Establishing a rectangular coordinate system, taking an input value as an abscissa and a standard value as an ordinate to obtain starting point coordinates (2, 4) and also obtain end point coordinates (30, 20); and connecting the starting point and the end point to obtain a standardized oblique line. If the detected output signal at a certain moment is 12mv, it is converted into a normalized output signal m at that moment having a value of 6.86mv. If the residual chlorine sensor has a measuring range of 0-100ppm, the ratio of the total measuring range of the residual chlorine measured value at the moment is: (6.86-4)/(20-4) = 17.875%, and further, the residual chlorine measurement value at this time was 100×17.875% = 17.875ppm. As for the operation from the electrical signal to a specific value, the prior art can be implemented, and will not be described in detail in this application.
In addition, the application also discloses another standardized calculation method.
And converting the actually read measuring range into a standardized measuring range by taking the measuring range of the standardized probe as an ordinate and taking the measuring range of the actually used probe as an abscissa, and then directly obtaining the standardized result of the actual measured value.
Further, the residual chlorine value can be compared with a set detection range, if the set detection range is 0.1-10ppm, the actual measurement value of the residual chlorine at the moment is larger than the end value of the detection range, the output is 'higher', and the result is synchronously sent to the interaction processor and the cloud communication processor so that a user can know in time.
Through the cloud intelligent water quality monitoring system, the non-standardized sensor is used immediately, standardized adaptation is not needed, so that the adaptation cost is reduced, the selection requirement on the sensor is reduced, and the data monitoring is accurate and reliable, and has good universality and high accuracy. Because the improvement of commonality for interconnection and intercommunication become easy and convenient realization become possible to acquisition that can be convenient detects data, and in with data transmission to man-machine interaction module and high in the clouds server, and then the thing networking state that realizes the thing interconnection that can be easy. Or, the mode of the Internet of things for water quality monitoring and control is realized, the requirement on a water quality monitoring sensor is reduced, the nonstandard sensor can be well adapted even if the nonstandard sensor is a nonstandard product, and the nonstandard sensor can be ensured to have higher detection precision.
In order to ensure the detection precision, the data detected by the sensor is directly used after being amplified and filtered, and standardized adaptation is not performed any more, so that the data precision can be ensured, and the result obtained after conversion is accurate and reliable. The filtering and amplifying operation of the data detected by the sensor can be performed according to the performance of the sensor, and the data does not need to be amplified and filtered according to the standardized requirements, so that the accuracy of the obtained result is easier to ensure.
In addition, the running mode in the programmable controller can be programmed according to user definition, and the modules of the programmable controller can be defined freely, so that rich personalized requirements are realized, and the detected customized requirements are also ensured. Therefore, more devices or elements are accessed, the access to the Internet of things is possible, and the water quality monitoring is easier to realize.
The application also provides rich connectors and interactive operation modules, so that newly accessed equipment is more convenient, and the modules are easier to add.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application.
Claims (8)
1. The utility model provides a high in clouds intelligent water quality monitored control system which characterized in that: the intelligent control system comprises a programmable controller, a detection input module, a liquid level input module, an output control module, a cloud communication module and a man-machine interaction module;
the detection input module transmits the detected analog signal to the programmable controller in an analog-to-digital conversion mode through the digital sensor input module, and then transmits the analog signal to the programmable controller in a digital signal mode; the liquid level input module carries out analog-to-digital conversion on the analog signal of the monitored liquid level through the digital sensor input module and then transmits the analog signal to the programmable controller in a digital liquid level value mode;
the programmable controller sends a control signal to the output control module to control the on and off of the drug injection action;
the programmable controller is electrically connected with the cloud communication module through an RS485 communication interface;
the programmable controller is electrically connected with the man-machine interaction module through another RS485 communication interface;
the cloud communication module comprises a cloud communication processor, a four-bit dial switch and a wireless communication module; the cloud communication processor is respectively and electrically connected with the four-bit dial switch and the wireless communication module, and controls the four-bit dial switch to switch the wireless communication mode; the cloud communication processor is electrically connected with the programmable controller through an RS485 communication interface;
the man-machine interaction module comprises an interaction processor, a memory temporary storage, a touch screen and a display screen, wherein the memory temporary storage is electrically connected with the interaction processor, the touch screen is electrically connected with the interaction processor through a resistance type interface, and the display screen is electrically connected with the interaction processor through a liquid crystal screen interface; the interaction processor is electrically connected with the programmable controller through an RS485 communication interface; the touch screen is stacked on the display screen;
the programmable controller performs standardization processing on the digital signals transmitted by the digital sensor input module to obtain standardized detection signals, compares the standardized detection signals with a set range, and sends comparison results to the cloud communication processor and the interaction processor respectively;
the performing normalization processing of the digitized signal to obtain a normalized detection signal includes:
establishing a rectangular coordinate system by taking an input value as an abscissa and a standard value as an ordinate;
obtaining starting point coordinates according to the starting point input value and the starting value of the standard value in the setting process; obtaining an end point coordinate according to the end point input value and the end value of the standard value in the setting process;
connecting the starting point coordinate and the end point coordinate on the same straight line to obtain standardized oblique lines;
corresponding the value of the obtained digital signal on the abscissa, and finding the ordinate value of the corresponding standardized oblique line, thereby obtaining the value of the standardized detection signal;
the comparing the standardized detection signal with the set range comprises:
setting a detection range of each detected signal, comparing the value of the standardized detection signal with the end value of the set detection range if the initial value of the detection range of the detected signal is 0, and outputting if the value of the standardized detection signal is smaller than the end value; if the value of the standardized detection signal is larger than the end point value, the output is higher;
if the initial value of the detection range of the detected signal is larger than 0, comparing the value of the standardized detection signal with the set initial value of the detection range, and if the comparison result is that the value of the standardized detection signal is smaller than the initial value, outputting the standardized detection signal to be lower; if the comparison result is that the value of the standardized detection signal is larger than the initial value, comparing the value of the standardized detection signal with the set end value of the detection range;
if the comparison result is that the value of the standardized detection signal is smaller than the end point value, outputting the standardized detection signal to be qualified; if the comparison result is that the value of the standardized detection signal is larger than the end point value, the output is higher.
2. The cloud intelligent water quality monitoring system of claim 1, further comprising, after the comparing results are sent to the cloud communication processor and the interaction processor, respectively:
establishing an association relation between a detection input module and the output control module;
the programmable controller sends out corresponding control signals to the corresponding liquid injection pump so as to control the starting or closing of the corresponding liquid injection pump.
3. The cloud intelligent water quality monitoring system according to claim 2, wherein the sending the comparison result to the cloud communication processor and the interaction processor respectively includes: if the comparison result is qualified, the obtained numerical value of the standardized detection signal is sent to an interaction processor, and the numerical value is displayed on a corresponding module of the display screen after being processed by the interaction processor; meanwhile, sending the qualified word to a cloud communication processor so as to display the qualified word at a user terminal;
if the comparison result is higher or lower, the obtained numerical value of the standardized detection signal is sent to the interaction processor, the numerical value is displayed on the display screen in a mode that the dial pointer points to the corresponding scale, and the higher or lower numerical value is displayed on the display screen; and sends the "high" or "low" to the cloud communication processor.
4. The cloud intelligent water quality monitoring system of claim 2, wherein the detection input module comprises a residual chlorine sensor, a pH sensor, a turbidity sensor, a dissolved oxygen sensor, a constant pressure Yu Yang sensor, and an ammonia nitrogen sensor;
the liquid level input module comprises an acid liquid level meter, an alkali liquid level meter, a chlorine liquid level meter and a precipitant level meter;
the output control module comprises Y0 optical coupling isolation output, Y1 optical coupling isolation output, Y2 optical coupling isolation output and Y3 optical coupling isolation output;
the Y1 optical coupling isolation output is electrically connected with the acid liquor metering pump, the Y2 optical coupling isolation output is electrically connected with the alkali liquor metering pump, the Y0 optical coupling isolation output is electrically connected with the chlorine liquor metering pump, and the Y3 optical coupling isolation output is electrically connected with the precipitant metering pump;
the establishment of the association relation between the detection input module and the output control module comprises the establishment of the association relation between the residual chlorine sensor and Y0 optical coupling isolation output, the establishment of the association relation between the pH sensor and Y1 optical coupling isolation output and Y2 optical coupling isolation output, the establishment of the association relation between the turbidity sensor and Y3 optical coupling isolation output, and the establishment of the association relation between the dissolved oxygen sensor, the constant pressure Yu Yang sensor, the ammonia nitrogen sensor and the oxygenation pump.
5. The cloud intelligent water quality monitoring system of claim 4, wherein the programmable controller sends out corresponding control signals to corresponding infusion pumps, comprising:
analog signals detected by the residual chlorine sensor are subjected to analog-to-digital conversion, digital signals after the analog-to-digital conversion are subjected to standardization processing to obtain residual chlorine measured values, and the residual chlorine measured values are compared with residual chlorine set values; if the comparison result is qualified, the programmable controller sends a control signal to the Y0 optical coupling isolation output so as to control the chlorine liquid metering pump to be in a stop state; if the comparison result is lower, controlling the chlorine liquid metering pump to be started and in an operating state;
analog signals detected by the pH sensor are subjected to analog-to-digital conversion, digital signals after the analog-to-digital conversion are subjected to standardization treatment to obtain a pH value, and the pH value is compared with a pH set value; if the comparison result is qualified, the programmable controller sends a control signal to the Y1 optical coupling isolation output and the Y2 optical coupling isolation output so as to control the acid liquor metering pump and the alkali liquor metering pump to be in a stop state respectively; if the comparison result is higher, controlling the acid liquor metering pump to start and keep running until the detection result of the pH value is qualified; if the comparison result is lower, controlling the alkali liquor metering pump to start and keep running until the detection result of the pH value is qualified;
analog-to-digital conversion is carried out on the analog signal detected by the turbidity sensor, the digital signal after the analog-to-digital conversion is subjected to standardization treatment to obtain a turbidity value, the turbidity value is compared with a turbidity set value, and if the comparison result is qualified, the programmable controller sends a control signal to Y3 optical coupling isolation output so as to control the precipitant metering pump to be in a stop state; if the comparison result is higher, controlling the precipitant metering pump to start and keep running until the turbidity detection result is qualified.
6. The cloud intelligent water quality monitoring system of any of claims 1-5, further comprising a power circuit electrically connected to the programmable controller, the detection input module, the liquid level input module, the output control module, the cloud communication module, and the human-machine interaction module, respectively.
7. The cloud intelligent water quality monitoring system of claim 6, wherein the wireless communication module comprises a GPRS communication module, a TCP communication module, a WIFI communication module;
the four-bit dial switch is respectively and electrically connected with the GPRS communication module, the TCP communication module and the WIFI communication module so as to switch and select the communication mode.
8. The cloud intelligent water quality monitoring system of claim 7, wherein the programmable controller is provided with a MODBUS communication interface, and the man-machine interaction communication module is provided with a download program USB interface.
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| JP5238301B2 (en) * | 2008-03-11 | 2013-07-17 | 五洋建設株式会社 | Water quality monitoring method and water quality monitoring system |
| CN104536403A (en) * | 2014-12-15 | 2015-04-22 | 沈鹏 | Water quality purification device intelligent monitoring and management system based on cloud |
| WO2017214917A1 (en) * | 2016-06-16 | 2017-12-21 | 武克易 | Intelligent water quality monitoring system |
| CN108255056A (en) * | 2017-12-29 | 2018-07-06 | 武汉长江仪器自动化研究所有限公司 | Water factory's intelligent dosing control system and its control method |
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| CN209911276U (en) * | 2018-12-29 | 2020-01-07 | 江苏斯乐威环保科技有限公司 | Water quality multi-parameter remote monitoring and water quality remote control dosing platform |
| CN110818134A (en) * | 2019-11-21 | 2020-02-21 | 湖南俊翔科技发展有限公司 | Automatic monitoring control system of water plant |
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